505682318 has 12 divisors (see below), whose sum is σ = 768554640. Its totient is φ = 249501096.

The previous prime is 505682291. The next prime is 505682329. The reversal of 505682318 is 813286505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281768 + ... + 283556.

It is an arithmetic number, because the mean of its divisors is an integer number (64046220).

Almost surely, 2^505682318 is an apocalyptic number.

505682318 is a deficient number, since it is larger than the sum of its proper divisors (262872322).

505682318 is an frugal number, since it uses more digits than its factorization.

505682318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3659 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 505682318 is about 22487.3813059680. The cubic root of 505682318 is about 796.6959131746.

The spelling of 505682318 in words is "five hundred five million, six hundred eighty-two thousand, three hundred eighteen".